NJR-T04HD / NJR-R04HD User’s Guide
27
8.3.4 Connecting RS-232C
Pin assignment of the RS-232C connector is as follows.
Use a cross cable or a straight cable depending on device to be connected.
D-sub 9 pin, male
1
5
RS-232C connector
6
9
[Fig. 8.6] Specification of RS-232C connector
■
Connecting NJR-04UHD to PC
Use a cross cable to connect the NJR-04UHD to a PC.
RD
TD
N.C.
N.C.
N.C.
N.C.
GND
RTS
CTS
Pin #
1
3
2
4
6
5
7
9
8
Signal
RD
TD
N.C.
N.C.
N.C.
N.C.
GND
RTS
CTS
Signal
(
Receiving data
)
(
Sending data
)
(
Ground
)
(
Sending request
)
(
Receiving request
)
NJR-04UHD
PC
(
Not used
)
(
Not used
)
(
Not used
)
(
Not used
)
N.C.
:
No Connection
[Fig. 8.7] RS-232C pin assignment (connecting to PC)
■
Connecting NJR-04UHD to IDK’s products
Use a cross cable to connect the NJR-04UHD to an IDK’s product.
RD
TD
N.C.
N.C.
N.C.
N.C.
GND
RTS
CTS
Pin #
1
3
2
4
6
5
7
9
8
Signal
RD
TD
N.C.
N.C.
N.C.
N.C.
GND
RTS
CTS
Signal
(
Receiving data
)
(
Sending data
)
(
Ground
)
(
Sending request
)
(
Receiving request
)
NJR-04UHD
IDK
’
s products
(
Not used
)
(
Not used
)
(
Not used
)
(
Not used
)
N.C.
:
No Connection
[Fig. 8.8] RS-232C pin assignment (connecting to IDK’s product)